TN&A provides ecological services for a variety of projects requiring the restoration of native plant communities. Our natural resources staff have selected, designed, and provided construction management for several thousand acres of wetland mitigation and upland restoration sites across Wisconsin, New Hampshire, and New Jersey. For these projects, we have provided hydrologic analysis, soils characterization, planting and/or seeding plans, construction management, and long-term monitoring plan development. Most plans also address vegetation management techniques utilized to control or eradicate non-native, invasive plant species. Our staff has extensive experience in design and implementation of techniques used to manage native plant communities.

TN&A designed a 3.2-acre wetland mitigation site to compensate for the loss of wetlands for three interchange construction projects in Wisconsin. The design incorporated plantings and seeding for wet meadow, shallow and deep marsh, and tall grass prairie. Plans and specifications for enhancement of an additional 4.8 acres of existing wetlands were provided and included non-native, invasive species eradication and interseeding with native grasses and forbs.

As part of a $15M remedial action at the Nascolite Superfund Site in New Jersey, TN&A designed and constructed a wetland mitigation site. TN&A applied for and obtained all necessary state and federal wetland and erosion control permits. The final design consisted of a 0.41-acre wetland and the adjacent 0.46-acre transition zone. Construction consisted of regrading the excavated area and planting the disturbed area with native tree, shrub, forb and grass species. We also provided oversight during wetland construction and completed a three-year site monitoring and maintenance plan for the mitigation site.